| Author |
Message |
Mark Langer
Guest
|
 Posted:
Fri Oct 22, 2004 6:01 pm Post subject:
2 Virtual E2k3 on 3 Node-Cluster (a/a/p) |
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Hi there,
the following scenario: 2 Active and 1 Passiv Node, Windows/Exchange 2003, 2
Virtual Exchange Servers
In KB329208 (http://support.microsoft.com/default.aspx?kbid=329208) MS says,
it is not possible to get 2 VES online at a time on the passiv node, if the 2
active nodes are getting offline, just 1 VES can get online, the 2nd VES
can't come online.
I tried it in the testlab, and it works fine (both VES come online on the
3rd Node).
Now I have to know whether I do something "wrong" oder MS is wrong in KB.
Does anyone had this "problem" before ??
Thanks,
Mark
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Benoit Boudeville
Guest
|
| Posted:
Sat Oct 23, 2004 1:21 am Post subject:
RE: 2 Virtual E2k3 on 3 Node-Cluster (a/a/p) |
|
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You're right, but it depends.
SP1 solved this problem, including the Public Store problem and the
limitations on the number of stores that can be mounted on a physical node at
a time.
Since SP1, two EVS can be bought online on a single node with less problems,
however with some restrictions (number of simultaneous MAPI connection is
still restricted to about 5000-6000 per node (so if you have 2 EVS with nodes
sized to host, let's say, 5000 MAPI connection, if both EVS run on 1 node,
then only half your users will be able to connect). Also, there are many
chances to face virtual memory fragmentation problems after some uptime.
This also makes Active/Active cluster be less risky, however they're still
not recommended (if you need 2 EVS, having at least 1 passive is a better (or
best) practice).
Notice how that this article doesn't apply to SP1 (See "APPLY TO" section) ;)
Hope this helps,
Ben.
"Mark Langer" wrote:
| Quote: | Hi there,
the following scenario: 2 Active and 1 Passiv Node, Windows/Exchange 2003, 2
Virtual Exchange Servers
In KB329208 (http://support.microsoft.com/default.aspx?kbid=329208) MS says,
it is not possible to get 2 VES online at a time on the passiv node, if the 2
active nodes are getting offline, just 1 VES can get online, the 2nd VES
can't come online.
I tried it in the testlab, and it works fine (both VES come online on the
3rd Node).
Now I have to know whether I do something "wrong" oder MS is wrong in KB.
Does anyone had this "problem" before ??
Thanks,
Mark |
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|
| Back to top |
|
|
Mark Langer
Guest
|
| Posted:
Wed Oct 27, 2004 4:39 pm Post subject:
RE: 2 Virtual E2k3 on 3 Node-Cluster (a/a/p) |
|
|
Hi Benoit,
thanks for the information about SP1. Maybe it works with.
Mark
"Benoit Boudeville" wrote:
| Quote: |
You're right, but it depends.
SP1 solved this problem, including the Public Store problem and the
limitations on the number of stores that can be mounted on a physical node at
a time.
Since SP1, two EVS can be bought online on a single node with less problems,
however with some restrictions (number of simultaneous MAPI connection is
still restricted to about 5000-6000 per node (so if you have 2 EVS with nodes
sized to host, let's say, 5000 MAPI connection, if both EVS run on 1 node,
then only half your users will be able to connect). Also, there are many
chances to face virtual memory fragmentation problems after some uptime.
This also makes Active/Active cluster be less risky, however they're still
not recommended (if you need 2 EVS, having at least 1 passive is a better (or
best) practice).
Notice how that this article doesn't apply to SP1 (See "APPLY TO" section) ;)
Hope this helps,
Ben.
"Mark Langer" wrote:
Hi there,
the following scenario: 2 Active and 1 Passiv Node, Windows/Exchange 2003, 2
Virtual Exchange Servers
In KB329208 (http://support.microsoft.com/default.aspx?kbid=329208) MS says,
it is not possible to get 2 VES online at a time on the passiv node, if the 2
active nodes are getting offline, just 1 VES can get online, the 2nd VES
can't come online.
I tried it in the testlab, and it works fine (both VES come online on the
3rd Node).
Now I have to know whether I do something "wrong" oder MS is wrong in KB.
Does anyone had this "problem" before ??
Thanks,
Mark |
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| Back to top |
|
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Evan Dodds [MSFT]
Guest
|
| Posted:
Tue Nov 02, 2004 5:52 am Post subject:
Re: 2 Virtual E2k3 on 3 Node-Cluster (a/a/p) |
|
|
Benoit -
Whoa, hold the phone! I missed this one because I was on vacation, but it's
too important to let it go. What you've said below is NOT correct for
clusters with >2 nodes. The same "enforce A/P behavior for clusters with >2
nodes" behavior remains in Exchange 2003 SP1. This is as described in the KB
article Mark references: KB.329208 -- which most certainly DOES apply to
SP1; service packs are generally only designated in the "applies to" section
when there is a change or some other reason to highlight the service pack in
the KB.
If you try to fail multiple EVS to a single node of an Exchange 2003 SP1
3,4,5,6,7, or 8 node cluster the System Attendant will fail to come online
with events 1022 and 1003 from MSExchangeCluster source:
1022 = "The Exchange cluster is operating in an Active/Passive mode and
cannot have more than one System Attendant resource online on the same
node."
1003 = "Failed to bring the resource online."
The 1003 should also have error 0x13cf in the extended data which equates
to:
ERROR_NODE_CANT_HOST_RESOURCE
# The cluster resource cannot be brought online. The owner node cannot run
this resource.
The multiple MAPI public stores per cluster (with >2 nodes) issue is a
totally separate and unrelated change.
Mark - Are you sure you have installed Exchange 2003 successfully onto all
of the nodes? Exchange 2003 doesn't count any nodes in the cluster which it
doesn't think have Exchange installed (unlike Exchange 2000). So this means
you could conceivably have an 8 node cluster and it would behave like a 2
node cluster for Exchange (ie - allowing A/A) if Exchange is installed on
only two of the nodes...
--
Evan Dodds
Microsoft Exchange Support
****** Disclaimer ******
This posting is provided "AS IS" with no warranties, and confers no rights.
Note: Please do not reply to this e-mail address. It is used for newsgroup
purposes only.
"Benoit Boudeville" <BenoitBoudeville@discussions.microsoft.com> wrote in
message news:54B84F5A-FCA2-4DC8-890F-6EFA44A6AD25@microsoft.com...
| Quote: |
You're right, but it depends.
SP1 solved this problem, including the Public Store problem and the
limitations on the number of stores that can be mounted on a physical node
at
a time.
Since SP1, two EVS can be bought online on a single node with less
problems,
however with some restrictions (number of simultaneous MAPI connection is
still restricted to about 5000-6000 per node (so if you have 2 EVS with
nodes
sized to host, let's say, 5000 MAPI connection, if both EVS run on 1 node,
then only half your users will be able to connect). Also, there are many
chances to face virtual memory fragmentation problems after some uptime.
This also makes Active/Active cluster be less risky, however they're still
not recommended (if you need 2 EVS, having at least 1 passive is a better
(or
best) practice).
Notice how that this article doesn't apply to SP1 (See "APPLY TO" section)
;)
Hope this helps,
Ben.
"Mark Langer" wrote:
Hi there,
the following scenario: 2 Active and 1 Passiv Node, Windows/Exchange
2003, 2
Virtual Exchange Servers
In KB329208 (http://support.microsoft.com/default.aspx?kbid=329208) MS
says,
it is not possible to get 2 VES online at a time on the passiv node, if
the 2
active nodes are getting offline, just 1 VES can get online, the 2nd VES
can't come online.
I tried it in the testlab, and it works fine (both VES come online on the
3rd Node).
Now I have to know whether I do something "wrong" oder MS is wrong in KB.
Does anyone had this "problem" before ??
Thanks,
Mark |
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|
| Back to top |
|
|
Mark Langer
Guest
|
| Posted:
Fri Nov 19, 2004 6:16 pm Post subject:
Re: 2 Virtual E2k3 on 3 Node-Cluster (a/a/p) |
|
|
| Quote: | Mark - Are you sure you have installed Exchange 2003 successfully onto all
of the nodes? Exchange 2003 doesn't count any nodes in the cluster which
it doesn't think have Exchange installed (unlike Exchange 2000). So this
means you could conceivably have an 8 node cluster and it would behave
like a 2 node cluster for Exchange (ie - allowing A/A) if Exchange is
installed on only two of the nodes...
|
Hi Evan, hi Benoit,
sorry for the late answer, now I had my holiday 2 weeks.
Definitly it does not work to get 2 Virtual Exchange Server online on the
remaining passive node, neither with nor without SP1. One single time I got
both SA online on the 3rd Node, but I wasn't able to mount the databases. I
think this was a kind of "coincidence".
Thanks for your help,
Mark
"Evan Dodds [MSFT]" <evand@online.microsoft.com> schrieb im Newsbeitrag
news:%23jips3GwEHA.2976@tk2msftngp13.phx.gbl...
| Quote: | Benoit -
Whoa, hold the phone! I missed this one because I was on vacation, but
it's too important to let it go. What you've said below is NOT correct for
clusters with >2 nodes. The same "enforce A/P behavior for clusters with
2 nodes" behavior remains in Exchange 2003 SP1. This is as described in
the KB article Mark references: KB.329208 -- which most certainly DOES
apply to SP1; service packs are generally only designated in the "applies
to" section when there is a change or some other reason to highlight the
service pack in the KB.
If you try to fail multiple EVS to a single node of an Exchange 2003 SP1
3,4,5,6,7, or 8 node cluster the System Attendant will fail to come online
with events 1022 and 1003 from MSExchangeCluster source:
1022 = "The Exchange cluster is operating in an Active/Passive mode and
cannot have more than one System Attendant resource online on the same
node."
1003 = "Failed to bring the resource online."
The 1003 should also have error 0x13cf in the extended data which equates
to:
ERROR_NODE_CANT_HOST_RESOURCE
# The cluster resource cannot be brought online. The owner node cannot run
this resource.
The multiple MAPI public stores per cluster (with >2 nodes) issue is a
totally separate and unrelated change.
Mark - Are you sure you have installed Exchange 2003 successfully onto all
of the nodes? Exchange 2003 doesn't count any nodes in the cluster which
it doesn't think have Exchange installed (unlike Exchange 2000). So this
means you could conceivably have an 8 node cluster and it would behave
like a 2 node cluster for Exchange (ie - allowing A/A) if Exchange is
installed on only two of the nodes...
--
Evan Dodds
Microsoft Exchange Support
****** Disclaimer ******
This posting is provided "AS IS" with no warranties, and confers no
rights.
Note: Please do not reply to this e-mail address. It is used for newsgroup
purposes only.
"Benoit Boudeville" <BenoitBoudeville@discussions.microsoft.com> wrote in
message news:54B84F5A-FCA2-4DC8-890F-6EFA44A6AD25@microsoft.com...
You're right, but it depends.
SP1 solved this problem, including the Public Store problem and the
limitations on the number of stores that can be mounted on a physical
node at
a time.
Since SP1, two EVS can be bought online on a single node with less
problems,
however with some restrictions (number of simultaneous MAPI connection is
still restricted to about 5000-6000 per node (so if you have 2 EVS with
nodes
sized to host, let's say, 5000 MAPI connection, if both EVS run on 1
node,
then only half your users will be able to connect). Also, there are many
chances to face virtual memory fragmentation problems after some uptime.
This also makes Active/Active cluster be less risky, however they're
still
not recommended (if you need 2 EVS, having at least 1 passive is a better
(or
best) practice).
Notice how that this article doesn't apply to SP1 (See "APPLY TO"
section) ;)
Hope this helps,
Ben.
"Mark Langer" wrote:
Hi there,
the following scenario: 2 Active and 1 Passiv Node, Windows/Exchange
2003, 2
Virtual Exchange Servers
In KB329208 (http://support.microsoft.com/default.aspx?kbid=329208) MS
says,
it is not possible to get 2 VES online at a time on the passiv node, if
the 2
active nodes are getting offline, just 1 VES can get online, the 2nd VES
can't come online.
I tried it in the testlab, and it works fine (both VES come online on
the
3rd Node).
Now I have to know whether I do something "wrong" oder MS is wrong in
KB.
Does anyone had this "problem" before ??
Thanks,
Mark
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